Let n and k be positive integers such that n≥k+1C2. The number of in – InterviewSolution

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1.	Let n and k be positive integers such that n≥k+1C2. The number of integral solutions of x1+x2+⋯+xk=n, x1≥1,x2≥2,⋯xk≥k is
Answer» Let $n$ and $k$ be positive integers such that $n \geq^{k + 1} C_{2}$ . The number of integral solutions of $x_{1} + x_{2} + \dots + x_{k} = n,$ $x_{1} \geq 1, x_{2} \geq 2, \dots x_{k} \geq k$ is

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